Circular loom.



'10.. 629,25'; I Patanted July I8, 1899.

. J. 8|. 0. HERDLD.

CIRCULAR L00".

(Appicition filed Feb. 11, 1 898.)

5 Shear-Sheet I.

(In H0401.)

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No: 629,251. Patentad luly 18, I899. J. a. c. HEBOLD.

CIRCULAR 1.00M.

Application filed Feb. 11, 1898;

(No Iodsi.) 5 Sheets-Sheet 3.

m: NORRIS PETERS co, PHOTO-LUNG. wnsmrawom n. c,

I Patented July I8, 1899; J. a. 0. new.

CIRCULAR LOQM. I (Application fileci Feb. 11, 189B.)

5 Shaats$heet 4.

(No Model.)

No. 629,251. V v Patented my I8, 1899.

J.'&. p. HERDLI]; r CIRCULAR L00".

(Application filed Fe. 11, 1888 5 sums-sheaf 5,

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errari vosnr, HERoLD, ennui-inn, AND cA nniiRoLn, or neuroses-Ln, nus'rnin unc nnnssrenons TORUNDWEBSTUHL FABRIK HEROLD & RICH;

ARDS, OF BRiiNN, AUsTRIA-I-IUNGARY.

' srncrr rcncrroiv forming part of net arsiratent no eeaasn'aat a Jury 18, race.

A Application filed February 11,

To all whom it mayconcern:

Be it known that we, J OSEF HEROLD, mahufacturer, of -23 Zollhausglacis, Briin'ngand CARL HEROLD,manufacturer, of Konigsfeld Moravia, Austria-Hungary, have invented" certain newand useful Improvements in Gir cular Looms; .and we do hereby declare that the following is a full, clear, and exact descrip tion of the same.

Reference is made drawings, in'which-- Figure 1 is a side elevation, partly in vertical section 5 Fig. l, a detail in section. Fig. 1 is a detail end elevation of certain'gears;

IO to the accompanying Fig. 2, a vertical section of a part of the loom, drawn to a larger scale; Fig. 3, a plan of the electromagnetic driving mechanism, together with the shuttle and shuttle-guard and the device for beating up the weft, the zonpper ring f being omitted; Fig.4, a detail elevation of the shuttle; Fig. 5, a diagram of the circuits for energizing the magnets and throwing out of gear the weft-guard and shuttle-guard. Fig. 6 shows the ring it, with the 2 5 spiral spring wound thereon. Fig.7 is a plan View of a portion of the heddles and the hed dle-leaves. Fig. '7 is a sectional view on the line y y of Fig. 7 Fig. 8 is a detail cross-seciion showing the shuttle and the weft-guard.

The invention relates to improvements in circular or rotary looms.

The present improvements relate more particularly to, first, a novel electromagnetic driving arrangement for the shuttle 3 second,

7 a new weft-guard for rotary looms; third, a

' shuttle-guard for rotary looms; fourth, a new construction of the arrangement for beating up the weftvthreads to the finished portion of the cloth; fifth,'a new arrangement of the 40 leaves of heddles; sixth, an'arrangementfor' folding the completed tubular-shaped goods.

The construction ofour circular or rotary loom has already been made known in our Patent No."608,67 6, dated August s, 1898, and is briefly described below, and afterward the improvements which are the subjectof the presentapplication for a patent are accurately detailed both as regards their construcl of which brass'caps arefixed, which dur tion and method of working.-

1895. Serial No. 669,898. (No model.)

i f The shaft ui,"actuated by the driving pul= l'ey P, imparts motion, by means of bevel-gears 7c? is, to a vertical shaft to. On the latter a boss Nis fixed, and on this the electromag 'n'et's'E, which drive the shuttless, are fastened. These'electromagnets receive the cur- 5 5 rent from some source through the intermediary of an insulated friction-contact mounted upon the shaft to. It consists of a ring or,

, made of some insulating material, (wood, hard rubber, ebonite, &c.,) upon which four brass 6o ringsja a a a? are mounted. A- brass spring as is in frictional contact WithOEtCh of these brass rings, two of which are connected with the source of current by wires m m through the intermediary of the brush-holder m At tated, being driven from the main shaft in by 70.

means of beveled wheels is it the countershaft 10 and'the pinion 2.

v The warp intended to be used is carried to th'e'harness-heddles g from the, warp-beams over laths c, and'the warp-threads n u must during their course first pass through crossrings h h in order to'be properly arranged in a circle. The upper cross-ring'h is encircled by a spirallspring, and into each spiral the warp-threads pass.

The harness-heddles g, which have an eye in the center, have their bent ends carried in the grooves .70 00 of eccentrics 0: m in order to form the shed, while on the other side they are fixed radially between the reeds b of the withthe shaft. Between these two rings fff the ends of the magnets E move, on the poles the center-shaft in, so that it does not revolve 5.

ing the rotation of the electromagnets push any loose-hanging inner warp-threads into their proper position. The magnets E act direct through the inner warp-threads vertically on the paramagnetic rollers 57' of the shuttles s, so that they are compelled to revolve with the rotation of the shaft to and roll along the rings ff Owing to the vertical action of the magnets E on the shuttle-rollers sr any displacement of the shuttles s, such as pressing against the warp-threads, is prevented, while owing to the direct and immediate action of the electromagnets E on the shuttles s the driving is effected with a very small outlay for the current.

In order to press any warp-threads crossed in the shed into the level of the tightlyare fixed on the shuttles s. The shuttles are prevented from sinking into the pointed part of the shed by the arms a of the lever 6Z which projects underneath the shuttles into the shed, these arms forming a firm support on which the shuttles can easily move on their pairs of rollers 31*. These lever-arms a at the same time serve to beat up the weft-picks.

to the clot-l1. Their salient characteristics and mode of operation have already been made known in our former patent aforesaid. They are arranged'in such a way that several reeds a are joined to form a slay a, which by means of the top (1 and a screw is fastened to the lever D1 By this means a large number of levers bl Z11 are saved as contrasted with the previous arrangement, while the levers are more easily adjusted and more accessible. In order to stop the rotary loom when a weftthread breaks or slips out, a two-armed pivoted lever a is fixed on the upper shuttleguide ring f between two bearing-angles a. By means of a spring a the pointed end of the lever a which projects into the shed is pushed away, so that the con tact-pin (Z, joined up to the other end of the lever a, and which is covered with platinum underneath and carricd into the top of the case 6, is put out of contact with the contact-pin d, which is screwedinto the bottom of the case and coated at the top with platinum. It should here be pointed out that the top and bottom of the case 6 are electrically insulated from each other.

In order to secure the contact on the breakage or failure of the thread, a spring g fitted with an eye g and an upward bend g, is fixed on the shuttle s and carried through a slot .in the shuttle-box. To render a stoppage possible, the weft-thread coming from the cops or bobbins passes between the pin 2" and the spring 7?, adjoining the latter, then passes through the eye g of the spring g and is carried through the tube to the cloth. As long as the weft-thread passes through the eye g the spring 9 is, owing to the arrangement above described, drawn away, andtherefore when the shuttle s rotates cannot come into contact with the lever a. When the weftthread breaks or gets displaced, the spring 9 in consequence of its elastic power lifts the bend g, which, as soon as the shuttle passes underneath the lever a, turns the latter, so that the contact-pins d cl come into contact with each other and close the electric circuit. This current, the course of which will be de scribed later, puts into play the arrangement for throwing the machine out of gear and a brake appliance combined with same. The former is effected when the current energizes a solenoid 5E, which attracts into itself an iron core h s, until it strikes an iron plug sE, thus releasing the spring Gf, which moves the strap-fork u, by which means the belt is pushed from the fast pulley P to the loose pulley L. stretched warp, angle-shaped shoulders 25 26 0n the arm of the strap-fork u there is a I roller c, which serves as a lock or detent for j a rock-arm 3, which moves around the pin 1 E of the bearing 2 and which roller revolves around the pin 1 lever 3 there is a pin 4, which glides into a On the free end of the slot 5 of the two-armed lever 7, pivoted on the pin 6. The lever 7, which on one side is under the influence of the spring 8, on the other side is pivotal] y connected with an adj ustable connecting-rod 9. Thelowerend of this rod engages with the brake-lever 11, pivoted on the pin 10, which said, lever carries at its free end the brake 12, pivoted on a pin 13.- When the belt-fork is turned in the m anner described, this brake is pressed onto the annular rack or toothed disk R of the loom as the roller 11, when this turning of the strapfork takes place, releases the lever 3, whereby the spring 8 t-urnslevers 3 and 7and by means of the rod 9 draws down the brake-lever 11.

In the above-described throwing out of gear of. the loom by the electriccontact in the weftguard the course of the current is as follows: From each of the conductingwires m m which lead from the source of the current to the electromagnets E, conducting-wires 3 and 4 lead to one of the free extremities 1 of the wire of the solenoid-spool 3E. The free extremity 2 of the second wire of said a spool sE is connected with the connected levers a" by means of the'conducting-wire 5. The current flows as follows: Branching off from the main current it passes through the wire 4, through the solenoid-spool SE, and

through the wire 5 into one of the levers a of the weft-guard, the-n through the contactpin d" (which is brought in contact with the lever a when the weft breaks) and through the Wire 3 back to the main conductor.

In order also to bring into play the arrangement for throwing out of gear and applying the brake above described to stop the loom if from any cause one of the magnets E should allow its shuttle s to escape, the following shuttle-guard arrangement has been devised: Between the magnet-spools E there is a cylinder 14:, in which a piston 15, constantly pressed out by a spring 16, is loosely fixed.

On one of the surfaces of this piston 15 and of the cylinder-top 20, facing each other, a contact-ring 21 is fixed. In the fork-shaped end of the rod 17 of the piston 15 a roller 18, which revolves easily, is inserted. When the shuttle is attracted by the magnet, this roller is pressed inward by the shoulder 19, fixed on the former, in such'a way that the contactrings 21 are separated. Of course the piston 15 and the cylinder-top 20 are electrically insulated from each other. As soon as a shuttle is released from its magnet the piston 15 is pressed by the spring 16 onto the cylindercover 20 and the circuit is closed, which serves .m, which rests upon said rings, is connected with the extremity 2 of the wire of the solenoid-spool sE through the intermediary of its brush-holder and of the wire 9.

In the just-described circuit when one of the shuttles releases its magnet, bringing thereby rings 21 or the cover 20 in contact with thepiston 15 of a shuttle-guard, the current flows as follows: Starting from the main conductor m, it passes through the wire 4, through the solenoid-spool sE, into the brush m and the contact-ring a then through the wire 8 into the shuttle-guard cover 20, respectively,theircontact-rings 2l,then through the wire 6 to the contact-ring a and thence through the brush m, its holder m and the wire 7 to the main conductor m It should here be pointed out that the contact-rings may be omitted, in which case the circuit would be closed by the-direct contact of the piston 15 and the cylinder-top 20. As the cloth runs ed the templet-ring C it is carried over a shaper-guide 22, fixed on the latter, which shaper has the same horizontal circumference throughout, being circular at the top and wedge-shaped underneath for the purpose of unfolding the tubular-shaped cloth from its circular shape as it comes from the loom and guiding same to the delivery-rollers, which are driven from the main shaft to by means of chain 23 and interchangeable toothed wheels 24.

We claim as our inven tion-- 1. In a circularloom, the combination with electromagnets rotatably mounted on an upright shaft, of one or more shuttles having upright rollers each lying in the same radial line with a magnetic pole, and transverse rollers to maintain the shuttle in the plane of the magnets, substantially as described:

2. In a circularloom, the combination with electroinagnets rotatablymounted on an upright shaft, of stationary parallel rings between and within the plane of which the polepieces of said magnets move, and one or more shuttles havin g upright rollers resting against said rings in the same radial line with the pole-pieces, substantially as described.

3. In a circular loom, the combination with electromagnets rotatably mounted on an upright shaft, of stationary parallel rings between which the pole-pieces of said electromagnets move,one of said rings being grooved, weft-beating reeds adapted to enter and rest in said groove, and oneor more shuttles having upright rollers to run on said rings opposite the pole-pieces, and transverse rollers supported on the reeds, substantially as described.

4. In a circular loom, the combination with the electromagnetic shuttle-driving gear, of beveled caps on the pole-pieces of the electromagnets, for the purpose of returning looselyhanging warp-threads to their proper plane, substantially as described.

5. In a loom, the combination with an electric stop-motion, of one or more levers projecting into the shed and movable in planes parallel with the warp-threads, a circuitcloser controlled by said lever, and a shuttle carrying a lever-tripping device normallyheld out of action by the weft-thread, substantially as described.

6. In a circular loom, the combination with an electric stop-motion, of one or more levers projecting into the shed, a contact on the lever, a casing inclosing the end of said contact and the other terminal of the circuit, and a shuttle-carrying means for moving the lever when the weft-thread breaks, substantially as described.

7. In a circular m, the combination with thread but adaptedto rise and trip the lever when the thread breaks, substantially as described.

8. In a 100m, the combination with a beltshifter, of a spring for actuating it, and a detent for said spring, consisting of a solenoid, a stationary core in one end thereof, a movable core in the other end, a spring to throw the movable core into the path of the shifteractuating spring, and a stop-motion electrically connected with said solenoid, substantially as described.

9. In a circular loom, the combination with the belt-shifter it, having a roller o, of a rockarm 3 resting on said roller, a lever 7 con nected therewith, a spring 8 for actuating said lever, a brake-lever 11, an adjustable rod 9 connecting the levers 7 and 11, a brake-shoe 2 on the-lever 1l ,and an annular rack R ongaged by the brakeshoe, substantially as described.

10. In a circular loom, the combination with electromagnetic shuttle-driving gear, of an electric stop-motion, a circuit-closer therefor carried by the driving-gear, and a shuttle provided With means for keeping said circuitcloser normally open, substantially as described.

11. In a circular loom,the combination With an electromagnetic shuttle-driving gear, of an electric stop-motion, a circuit-closer therefor carried by the driving-gear and comprising a spring-actuated contact, and a shuttle having a projection adapted to engage with said contact, substantially as described.

12. In a circular loom,the combination with electromagnetic shuttledriving gear, of a casing, a spring-actuated piston therein, a circuit-closing contact on said piston, a pistonrod projecting from the casing, and a shuttle J OSEF HEROLDL CARL HEROLD.

WVitnesses:

W. DRATAKOUPIL, Mnino ToUcAU. 

